| Primary satellite | Secondary satellite |
| Name | Hubble Space Telescope | OBJECT BG |
| Spacetrack catalog number | 20580 | 47467 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 16 08:38 | 2021 Apr 16 10:05 |
| Time of closest approach (UTC) | 2021 Mar 04 15:55:42.936 |
| Minimum distance | 85.820 km |
| Height difference | 1.009 km |
| Relative speed | 11.273 km/s |
| Angle between velocity vectors | 96° |
| Geographic position | 28.5°N, 81.6°E |
| Height | 536 km |
|